/*
 * Copyright 2014 Ranjan Kumar
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.restfeel.controller.rest;

import java.util.List;

import javax.annotation.Resource;

import com.restfeel.constant.NodeType;
import com.restfeel.dao.NodeRepository;
import com.restfeel.dao.ProjectRepository;
import com.restfeel.dao.WorkspaceRepository;
import com.restfeel.dto.NodeDTO;
import com.restfeel.dto.ProjectDTO;
import com.restfeel.entity.BaseNode;
import com.restfeel.entity.Project;
import com.restfeel.entity.Workspace;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

@RestController
@EnableAutoConfiguration
@ComponentScan
@Transactional(propagation = Propagation.REQUIRES_NEW)
public class ProjectController {
    Logger logger = LoggerFactory.getLogger(ProjectController.class);

    @Resource
    private WorkspaceRepository workspaceRepository;

    @Resource
    private ProjectRepository projectRepository;

    @Resource
    private NodeRepository nodeRepository;

    @RequestMapping(value = "/api/workspaces/{workspaceId}/projects", method = RequestMethod.POST,
        headers = "Accept=application/json")
    public
    @ResponseBody
    Project create(@PathVariable("workspaceId") String workspaceId, @RequestBody ProjectDTO projectDTO) {
        logger.debug("Creating a new project with information: " + projectDTO);

        // Create project
        Project project = new Project();
        project.setName(projectDTO.getName());
        project.setDescription(projectDTO.getDescription());

        // Create project reference node
        BaseNode projectRef = new BaseNode();
        projectRef.setName(projectDTO.getName());
        projectRef.setNodeType(NodeType.PROJECT.name());
        projectRef.setParentId("-1");
        projectRef.setPosition(Long.valueOf(0));
        projectRef.setWorkspaceId(workspaceId);

        // Save project reference node
        BaseNode savedRef = nodeRepository.save(projectRef);

        // Set project reference node
        project.setProjectRef(savedRef);

        Project savedProject = projectRepository.save(project);

        // Update projectRef (Set projectId to the reference node)
        projectRef.setProjectId(savedProject.getId());
        nodeRepository.save(projectRef);

        // Update workspace
        Workspace workspace = workspaceRepository.findOne(workspaceId);
        workspace.getProjects().add(savedProject);
        workspaceRepository.save(workspace);

        return savedProject;
    }

    @RequestMapping(value = "/api/workspaces/{workspaceId}/projects/{id}", method = RequestMethod.DELETE,
        headers = "Accept=application/json")
    public
    @ResponseBody
    void delete(@PathVariable("workspaceId") String workspaceId, @PathVariable("id") String id) {
        logger.debug("Deleting project with id: " + id);

        Project projectToBeDeleted = projectRepository.findOne(id);

        List<BaseNode> listOfNodes = nodeRepository.findNodesFromAProject(id);

        nodeRepository.delete(listOfNodes);

        projectRepository.delete(projectToBeDeleted);

        Workspace workspace = workspaceRepository.findOne(workspaceId);
        workspace.getProjects().remove(projectToBeDeleted);
        workspaceRepository.save(workspace);
    }

    /*@RequestMapping(value = "/api/workspaces/{workspaceId}/projects", method = RequestMethod.GET)
    public @ResponseBody
    List<Project> findProjectsFromAWorkspace(@PathVariable("workspaceId") String workspaceId) {
	logger.debug("Finding all projects from workspace with id " + workspaceId);

	return projectRepository.findProjectsFromAWorkspace(workspaceId);
    }*/

    public List<Project> findAll() {
        logger.debug("Finding all projects");

        return projectRepository.findAll();
    }

    @RequestMapping(value = "/api/workspaces/{workspaceId}/projects/{id}", method = RequestMethod.GET)
    public
    @ResponseBody
    Project findById(@PathVariable("workspaceId") String workspaceId, @PathVariable("id") String id) {
        logger.debug("Finding project by id: " + id);

        return projectRepository.findOne(id);
    }

    @RequestMapping(value = "/api/workspaces/{workspaceId}/projects/{id}", method = RequestMethod.PUT,
        headers = "Accept=application/json")
    public
    @ResponseBody
    Project update(@PathVariable("workspaceId") String workspaceId, @PathVariable("id") String id,
                   @RequestBody ProjectDTO updated) {
        logger.debug("Updating project with information: " + updated);

        Project project = projectRepository.findOne(updated.getId());
        BaseNode projectRef = project.getProjectRef();

        String updatedName = updated.getName();
        if (updatedName != null) {
            project.setName(updatedName);
            projectRef.setName(updatedName);
        }

        String updatedDescription = updated.getDescription();
        if (updatedDescription != null) {
            project.setDescription(updatedDescription);
            projectRef.setDescription(updatedDescription);
        }

        nodeRepository.save(projectRef);
        projectRepository.save(project);

        return project;
    }

    @RequestMapping(value = "/api/workspaces/{workspaceId}/projects/{id}/copy", method = RequestMethod.POST,
        headers = "Accept=application/json")
    public
    @ResponseBody
    void copy(@PathVariable("workspaceId") String workspaceId, @PathVariable("id") String id,
              @RequestBody NodeDTO nodeDTO) {
        String nodeType = nodeDTO.getNodeType();
        if (!NodeType.PROJECT.name().equalsIgnoreCase(nodeType)) {
            return;
        }

        BaseNode node = nodeRepository.findOne(id);
        node.setName(nodeDTO.getName());
        node.setDescription(nodeDTO.getDescription());
        // TODO : Use NodeController#copyNodesRecursively.
        // copyNodesRecursively(node, node.getParentId());
    }

    @RequestMapping(value = "/api/project/list", method = RequestMethod.POST)
    public
    @ResponseBody
    List<Project> findAllRfRequest() {
        return projectRepository.findAll();
    }

}
